Originally Posted by jetfan
how does this compare with Star Alliance and OneWorld? Do highest tier members have lounge access irrespective of airline flown?
I am pretty certain you have to be flying a OW airline on that day to have access to an OW lounge ("own" airline or otherwise). You certainly don't get to access an OW lounge if you're flying a ST or *A airline that day. The only difference between top-tier (emerald) and middle tier (sapphire) in OW is which class lounge you get access to (first and business respectively).